SparkFun Electronics Commentsurn:uuid:214d0e4e-f1b1-d287-ce26-ac5b4c9f82492015-03-03T13:32:39-07:00SparkFun ElectronicsKamiquasi on PRT-10265 - 9V Li-Ion Battery ChargerKamiquasiurn:uuid:6070896b-1990-794a-5777-cf047b994c792011-08-15T01:32:15-06:00<p>Li-Ion tech has a nominal voltage of 3.6-3.7V per cell. There&rsquo;s probably two cells in such a &lsquo;9V brick&rsquo; (referring to the form-factor more than actual voltage), so 7.2V-7.4V. 8.4V should charge that nicely.</p>Kamiquasi on PRT-10265 - 9V Li-Ion Battery ChargerKamiquasiurn:uuid:8219df47-84b1-286d-28d1-81b07971aa292011-08-15T01:29:15-06:00<p>Looks like somebody didn&rsquo;t scan through a pre-existing document well enough and missed that one reference. Every other reference, and a photo inside the document, refers to Li-Ion. Well, &ldquo;Li-on&rdquo;, technically ;)</p>Bunk on PRT-10265 - 9V Li-Ion Battery ChargerBunkurn:uuid:dbc553e3-e314-9108-814b-3e296395eb1f2011-08-14T16:04:23-06:00<p>I too am confused by this charger. It says on the back (see pic) that it outputs 8.4v whereas this is a 9v battery charger. From what I know, it takes a voltage higher than 9v to charge a 9v battery. Does this charger really work?</p>Raja Balu on PRT-10265 - 9V Li-Ion Battery ChargerRaja Baluurn:uuid:1f0a3b0a-4950-8f82-cbf0-44df7ad243bb2011-06-20T21:35:33-06:00<p>The datasheet lists &ldquo;The charger is intended for use with Ni-MH/NiCd batteries only. Charging other battery types may cause explosions, breakage, personal injury or property damage.&rdquo; under #6 Cautions.<br/>
So is it truly a Li-ion battery charger?</p>TLAlexander on PRT-10265 - 9V Li-Ion Battery ChargerTLAlexanderurn:uuid:3099be89-de93-699a-e400-46054b463c1e2011-02-17T13:12:27-07:00<p>I remember when I was building robots in high school, and I mentioned that my little walker used up batteries quickly. He had six AA rechargables - 2100maH or so - but he ate them up. It was really funny how often people would say &ldquo;Just use 9v batteries, they have way more power.&rdquo; Apparently regular people equate voltage to power. Funny people. I did have a 9v for the electronics (the other batteries only powered the servos) and it was only 150mAh. Your lithiums look much nicer!<br/>
But now that you have a charger for them, things look a little better!</p>